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The ballasts constituent of the superstructure of railways, when submitted to cyclic loads of high intensity and frequency, suffer rapid wear in its supporting structure. The dismantling and levelling of ballasts demand large volumes per kilometer due to their degradation. Its minimal shoulders and height of construction define contours of sections with wide gravel bases. Because of this, particulate wear and its maintenance costs inflate the railroad budget. It was chosen to walk here on an investigative itinerary whose paradigm has its core in the concept of confinement and its effects on the Resilience Module of the ballast. The research remained on the practical effects of geogrid reinforcements applied within the ballast body and not at the interface with the underlying layer. In this work, the proposed goal of raising directional parameters to guide reinforcement performance tests and to better understand the causalities arising from geogrids specific properties such as mesh opening and stiffness of the elements, as well as correlating the position quotation effect reinforcement and its effects onto the degree of confinement generated. Palavras Chave – Lastro reforçado com geogrelha, carga cíclica, atuador hidráulico.

Intervenience of reinforcement in railway ballast with load of high traffic